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Re: [PATCH] Add features to pg_stat_statements - Mailing list pgsql-hackers

From Katsuragi Yuta
Subject Re: [PATCH] Add features to pg_stat_statements
Date
Msg-id 193879cdb9f6e14060bde2172f8399c9@oss.nttdata.com
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In response to Re: [PATCH] Add features to pg_stat_statements  (Julien Rouhaud <rjuju123@gmail.com>)
Responses Re: [PATCH] Add features to pg_stat_statements  (Julien Rouhaud <rjuju123@gmail.com>)
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On 2020-09-18 18:49, Julien Rouhaud wrote:
> Did you consider also adding the cumulated number of
> evicted entries?  This could be useful to know how to configure
> pg_stat_statements.max.

Thank you for your comments!
I overlooked the cumulated number of evicted entries.
This statistic looks important. But, I am not sure
if I should add this statistic to a view.
This is because I am not sure how to utilize the cumulated
number of evicted entries for configuring pg_stat_statements.max.

Not only providing a view but also logging evictions
along with the number of evicted entries might be a choice.
This idea is from legrand legrand [1].

[1] 
https://www.postgresql.org/message-id/1600500942767-0.post%40n3.nabble.com

Regards,
Katsuragi Yuta

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